Frog and frog-chair.



`G. H. EMERSON.

FROG AND FROG CHAIR.

APPLxcATxoN man Nov. 26. 1915.

TINTTED STATES PATENT FFTCE.

GEORGE H. .EMERSON, `0F ST. PAUL, MINNESOTA.

FROG AND FROG-CHAIR.

Application filed November 26, 1915.

To'dZZ wromz't mafjfco'ncem:

Be it known that I,Y.GnoRGEfI-I. EMERSON, citizen of the United States, resident'of St. Paul, county of Ramsey, State of Minnesota, have invented certain new and useful Improvements in Frogs and Frog-Chairs, of which the following is a specification.

In assembling the parts of a railroad frog and securing them together, it has been customary to drill holes through the chairs and wing rails and the filler castings and fit bolts therein extending vtransversely through the parts for securing them together.

It is necessary to renew the wing rails quite frequently and considerable time andlabor is required. to lit the parts together so that the holes in the chairs, the wing rails and the filler castings will all register for the reception of the bolts.

The object, therefore, of my invention is to provide a means for locking the wing rails. the chairs `and tho filler castings together without the use of bolts passing transversely therethrough to the end that the parts can be separated or assembled with less labor and expense.

The invention consists generally in various constructions and combinations, all as hereinafter described and particularly pointed out in the claims.

In the accompanying drawings forming part of this specification,

Figure 1 is a plan view of a railroad frog embodying my invention,

Fig. 2 is a side elevation of the same,

Fig. 3 is a detail sectional View, showing the means for securlng the wing rails, filler castings and the chairs together.

Fig. aL. is .i sectional view on the line of Fig. 3,

Fig. 5 is an end view of one of the frog chairs.

In the drawing, 2 and 3 represent track rails, al. and 5 are the wing rails of the frog and G the filler castings, which are inserted between the wing rails and the track rails 2 and 3, below the heads of the rails and seated against the webs thereof, as usual in the construction of a railroad frog. 7 represents the base plate of a frog chair. Three of these plates are illustrated in Fig. 1, all of the same general construction but varying slightly in width to adapt them for the different positions of the frog in which they are placed. A description of one of Specification of Letters Patent.

Patented Sept. 10, 1918.

serial No. 63,459.

these frog chairs will therefore suffice for all of them.

The frog chair has a fiat upper surface 8 on which the wing rails '-1 and 5 are seated, and one side of the chair has a bracket 9 cast thereon, provided with a recess 10 into which the iiange of the wing rail 5 is inserted, said bracket fitting into the space between the base and the head of the rail and seated against the underside of the head,` as indicated at 11. On the opposite side of the chair is an upright bracket 12 having an inwardly projecting flange 13 at its ripper end. This bracket 12 is preferably formed integrally with the frog chair and on the outside of the brackets 9 and l2 holes 11 are provided for the reception of spikes for securing` the chair to the tie.

I also prefer to providethe chair at one end thereof with a depending flange 15. lVhen the rails and the chair are assembled, filler castings 16 are interposed between the webs of the wing rails and the point of the track rails 2 and 3, filling the gap completcly between these rails but with their upper surfaces sulliciently below the tread of the wing rails to be out of contact with the wheel ianges. These filler castings have surfaces to fit snugly against the webs of the wing rails and the rails 2 and 3, as shown plainly in IFig. '4, and the wing rail on the outer side of the frog is wedged firmly between thefiller casting on one side and the bracket 9.

The chair is so placed that the web of the outer wing rail and the bracket 9 will be seated squarely against one another in suicstantially parallel relation. while on the opposite side of the chair the wing rail and the inner face of the bracket 12 will be in converging relation to one another, as shown plainly in Fig. 3, this being due to the divergence of the ends of the wing rails and the fact that the bracket 1Q, is obliquely arranged on the chair. When, therefore, the parts have been assembled, as above stated, a wedge-shaped gap or recess will be formed between the outer wing rail and the bracket 12 and into this recess I insert a wedge 17 having opposing surfaces to bear on the wedge of the adjacent wing rail and the bracket 12- and hold them firmly in their opposing relation. This wedge is preferably held against accidental loosening by a bolt 18 which passes endwise through the wedge and through a socket 19 in the wall 2O formed on the chair and having its head seated against the outer surface of the wall, a lock nut 21 being provided at the opposite end of the bolt which, when tightened, will draw the wedge firmly to its seat and lock the chair and the rails together.

I also prefer to provide a recess 22 in the head of the wing rail to receive a key 23 that is inserted .into said recess and against the wall 20 of the chair, thereby preventing :any possibility of slippage of the chair, or wing rails lengthwise of the rails. The under surface of the wedge 17 is preferably beveled to fit the flange of the rail and the top thereof is seated against the underside of the rail head and the flange 13 and when the locking bolt is tightened, there is no possibility of accidental movement of the wedge and the release of the chair.

In various ways the details of construction herein shown and described may be modified and still be within the scope of my invention.

I claim as my invention:

1. A frog chair comprising a base having upwardly projecting brackets thereon,wing rails seated on said base, a rail point between said wing rails, filler castings interposed between said rail point and said wing rails, and a wedge device interposed between one of said brackets and the adjacent wing rail for clamping the other wing rail against the opposite bracket and forming the only means for holding said wing rails, rail point and filler castings in their clamping relation and a bolt engaging one of said brackets and passing lengthwise through said wedge device for locking it between the adjacent bracket and wing rail.

2. The combination, with a frog chair having a bracket provided with a socket, of a wing rail seated on said chair and having a fiange to enter said socket, a second wing rail also seated on said chair, a rail point between said wing rails, filler castings interposed between said point and said wing rails, said chair having a second bracket formed thereon adjacent to said second wing rail and having an inner face in opposing and di 'erging relation with respect to the face of said second wing rail, a wedge seated against the diverging faces of said wing rail and said bracket, and a bolt mounted in said bracket and engaging and locking said wedge, the tightening of said bolt seating said wedge on said bracket and rail.

3. A frog chair comprising a base having upwardly projecting brackets, wing rails seated on said base, a rail point and filler casting interposed between said wing rails, a wedge seated on one of said brackets and the adjacent wing rail, the adjacent wing rail having a slot therein and a locking key fitting within said slot and engaging a face of the adjacent bracket for the purpose specified.

et. A frog chair comprising a base plate having a depending flange, and upwardly projecting brackets having a seat formed between them for the railroad frog and means for clamping said frog between said brackets.

A frog chair comprising a base having upwardly projecting brackets thereon and provided between said brackets with a seat for the wing rails, a wedge interposed between one 0f said brackets and the adjacent wing rail, and a bolt mounted at one end in a wall of said bracket and engaging at its other end with the larger end of said wedge for drawing it against its bracket and lthe adjacent rail.

6. A frog chair comprising a base having upwardly projecting brackets at the ends thereof, wing rails seated on said base, a

rail point and filler castings interposed between said wing rails, one of said brackets and the adjacent wing rail havingconverg ing opposing faces, and a wedge seated against said faces for pressing them apart and the opposite wing rail against the other bracket and clamping said wing rails, rail point and filler castings together and a bolt passing lengthwise through said wedge for drawing and holding it to its seat, the bracket adjacent said wedge having a flange overhanging said wedge toward the head of the wing rail and cooperating with said head to hold said wedge against upward movement. l

7 A frog chair comprising a base plate, brackets thereon, wing rails seated on said plate between said brackets, a rail point and filler castings interposed between said wing rails and means interposed between one of said brackets and the adjacent wing rail for; forcing said wing rails toward the other bracket and clamping them and said rail point and said filler castings together without the use of a transverse bolting means and a bolt seated at one end in one of said brackets and having means at its opposite end for engaging the end of said forcing means for seating it against the adjacent bracket and wing rail.

In witness whereof, I have hereunto set my hand this 16th day of November, 1915.

GEORGE H. EMERSON.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of atents Washington, D. C. 

